From Double Alpha
"The Double-Alpha PRIMAFILL is a semi-automatic primer-tube filling solution, able to quickly and easily fill both Small and Large primer tubes. It allows you to switch between Small and Large primers instantly, without tools or assembly.
The PRIMAFILL can be used with any primer tubes which have an 8mm outer diameter, such as Dillon, or DAA tubes. It does not require a custom adaptor piece fitted to the tube, as other competing products require. So using the PRIMAFILL, you will be able to fill all your primer tubes!'
